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  • ION Traze AMP Bike Short - Men's
  • ION Traze AMP Bike Short - Men's
  • ION Traze AMP Bike Short - Men's Back
  • ION Traze AMP Bike Short - Men's Back
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IONTraze AMP Bike Short - Men's
Sale 30% Off$69.96 $99.95

Item # INB0005

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Item # INB0005

Streamlined shorts for ripping.

From the high-desert mesas of Southern Utah to the forested hills and outcroppings of Michigan's Upper Peninsula, the Ion Men's Traze AMP Bike Short conquers epic stretches of trail with its no-nonsense, streamlined design that slides over your favorite liner shorts. It's made of four-way stretch borrowed from Ion's surf-friendly boardshorts, meaning you'll have no problem pedaling swiftly and maneuvering your trusty trail steed. Jet Stream ventilation holes promote breathability on sweltering summer days, especially when you're sweating profusely on long climbs. It's finished with an adjustable waistline to prevent it from slouching, as well as an integrated pouch for keeping your phone safe on the trail.
  • Streamlined trail shorts slide over your favorite padded liner
  • Four-way stretch material is light, rugged, and free-flexing
  • Jet Stream ventilation holes for breathability in hot weather
  • Hook-and-loop waist tabs offer fine-tuning and security
  • Integrated pouch for securing your smartphone on the trail
  • Reflective details for visibility in low-light conditions
Tech SpecsSize
Tech Specs
4-way stretch (88% polyester, 12% elastane), anti-odor treatment
2 hand, 1 integrated phone pouch
hook-and-loop tabs
Jet Stream ventilation holes
reflective details
Recommended Use


Men's Apparel
Arm Length

28.5 - 29in

(73 - 75cm)

29.5 - 30.5in

(76 - 78cm)

31 - 31.5in

(79 - 81cm)

32 - 33in

(82 - 84cm)

33 - 34in

(85 - 87cm)


33.5 - 37in

(91 - 95cm)

37.5 - 39in

(96 - 100cm)

39 - 41in

(101 - 105cm)

41 - 43in

(106 - 110cm)

43 - 45in

(111 - 115cm)


31 - 33in

(80 - 84cm)

33 - 35in

(85 - 89cm)

35 - 36.5in

(90 - 94cm)

37 - 38.5in

(95 - 99cm)

39 - 40.5in

(100 - 104cm)

Lower Waist

31.5 - 33.5in

(81 - 86cm)

34 - 36in

(87 - 92cm)

36 - 38in

(93 - 98cm)

39 - 40.5in

(99 - 104cm)

41 - 43in

(105 - 110cm)


35.5 - 37in

(91 - 96cm)

37 - 40in

(97 - 102cm)

40 - 42in

(103 - 108cm)

42.5 - 44.5in

(109 - 114cm)

44.5 - 47in

(115 - 120cm)


32 - 33in

(83 - 85cm)

33.5 - 34in

(86 - 88cm)

35 - 35.5in

(89 - 91cm)

How to Measure:
For best results, take measurements over your underwear.
Measure under your arms, around the fullest part of your chest.
Measure around your natural waistline, keeping the tape a bit loose.
Measure around the fullest part of your body at the top of your legs.
Using pants that fit well, measure the crotch seam to the bottom of the leg.
Arm Length
Measure from the center of your back to your wrist with arms held out.

Reviews & Community


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New favorite riding shorts

  • Familiarity: I've put it through the wringer
  • Fit: True to size

I highly recommend these shorts. They are super comfortable. It comes down to the 4-way stretch material. The 4-way stretch allows the best freedom of movement of any shorts I've tried to date. Overall quality of the materials and the stitching is good too.

Well-thought-out features include:

deep zippered pockets
right pocket has a padded cell phone sleeve
sturdy hook and loop velcro waist adjustments
ventilation holes to keep you cool

The inseam on these shorts is a good length too. It comes down right to my knee, perfect for most types of riding. These shorts work well with lower profile knee pads. For a similar short with longer inseam check out the Ion Scrub AMP.

I am 5'11, 185 lbs with 34" waist and the Large fit me perfectly.

Unanswered Question
Avg. ride time: 3h 34m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

What's the length of the inseam on these (size small)? Thanks!

Great for Biking

  • Familiarity: I've put it through the wringer

I recently picked these up and they are a solid biking short! I really like the hand on the material - it's moisture wicking, lightweight, breathable, and durable. I've taken a few diggers while wearing these and they still look brand new! The leg openings have plenty of room for knee pads and the two zipper pockets are perfect for a phone and whatever else you like to carry. I'm a 33" waist and went with the large and, after some adjustments with the waist velcro, they fit great!